Friday, December 22, 2017

Intelligent Sea Life Exists In Our Oceans

By Jennifer Evans


People have been fascinated with the sea and its creatures since they first saw it. From the beginning, people harvested fish and shellfish from the ocean for food, but they also enjoyed the diversity of life under the waves. Over the centuries, people have become convinced that intelligent sea life exists.

The first scientists were simply people who knew a lot about plants and animals that surrounded them, heavenly bodies they could see, and the rhythms of life: seasons, day and night, high and low tide, and other natural phenomena. At first there was a treasury of anecdotal lore. Fishermen would watch dolphins at play, whales with their young, marine birds soaring over land and sea, and strange creatures they found in their nets or on their lines. Sometimes things could only be explained in myths and fantasy, but other things could mean the difference between a good catch or an empty boat or even between life and death.

Divers in tropical waters say that dolphins, barracuda, and other denizens of the deep recognize them after a few encounters. Dolphins often interact with people. Seagulls are famous panhandlers, flocking so quickly and thickly that people learn not to throw bread on the water.

Goldfish were once thought to have a memory span of about three seconds. A modern study, however, explodes this idea. Not only can goldfish - not saltwater fishes, it's true, but representative of the species - learn to feed themselves by operating a lever, they also can learn to work it only at meal times. Moreover, researchers found that the fish remembered the trick for three months or more.

Almost everyone knows that seals, Orcas, and dolphins can be trained. These animals not only perform for a reward of their favorite food, but they seem to enjoy playing to an audience. They exhibit group behavior in the wild that helps them catch prey or protect themselves. Scientists are continually surprised at what they see.

Some of these animals seem to understand quite an astonishing number of words and to recognize certain people they are especially fond of. They often exhibit 'human' behavior; if a design is painted on a part of a dolphin's body that it cannot see, it will go to a mirror and examine itself, perhaps preening as if to show off the decoration.

It is sometimes hard to distinguish between instinct, a fascinating subject in itself, and intelligence. Do salmon find their way on migrations with thought or with instinctive urges they mindlessly obey? Do they recognize landmarks to choose the right river and creek? Is maternal love as demonstrated by dolphins and whales merely a behavior pattern dictated by survival instincts? Those who believe in creation rather than evolution may have an easier time of believing that sea creatures can reason.

Octopus may camouflage themselves with shells. Whales may work together to capture prey or sing a new song, never recorded before. Creatures have been observed using inanimate objects as tools. Some denizens of the deep live together in symbiotic relationships that seem to require intent and choice. It could be true that animals under the sea are thinking all the time.




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